Problem to change colors palette

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  • July 18, 2020 at 2:02 PM #39885
    Serge COLIN
    Participant

      Hello all,

      I tried to change the colors of light blue (14) and light green (13) with the vid-enh-palgen-asm program.
      To do so, I changed the contrast and saturation levels. I saved the original values beforehand. When I adjust the levels
      I don’t see any visual change even when testing with option T.
      I then tried to flash the new colors.
      After that I restarted the C64. The colours did not change.

      Is it necessary to establish a physical link with the C64 motherboard to make the flash?
      My version is a v1.18. Do I have to change the firmware for the flash to work?

      Thanks for your help!

      July 19, 2020 at 2:32 PM #39896
      Hojo_Norem
      Participant

        Did you toggle your mode select switch as instructed on the palette editor’s first screen?

        July 19, 2020 at 8:02 PM #39903
        Serge COLIN
        Participant

          Hello Hojo
          Thanks for your help!
          But What does that mean? The switch on my card is positioned to the middle position, so to have a picture (the other position give me blured screen or blank screen).
          I don’t understand the meaning of the sentence ‘Please toggle your output mode switch). Flash is not allowed in the middle position?

          I’m using an ultimate cartridge… that could be the cause?

          July 19, 2020 at 10:10 PM #39904
          Hojo_Norem
          Participant

            To paraphrase the enhancement mod’s GitHub page (can be considered the de-facto instruction manual):

            “Before you can change the palette register contents, you need to switch the output mode switch to a different mode and back again (back is optional).”
            https://github.com/c0pperdragon/C64-Video-Enhancement#details-on-color-signal-reprogramming

            Switching between two modes/states/whatever can be referred to as ‘toggling’.

            Your Ultimate Cart has no bearing on the issue (I have a first issue 1541U-II). Just toggle your mode select switch when instructed on screen and enjoy!

            July 20, 2020 at 7:23 AM #39911
            Serge COLIN
            Participant

              Thank you very much
              I will try to do that… I will keep you informed

              I saw thru your link that by this way it prevents untrusted code to modify the settings

              Sorry for my mesundertanding about toggleing!

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